Maria Koch

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BACKGROUND Esophagitis caused by gastroesophageal reflux disease (GERD) results in appreciable morbidity and economic burden. No systematic review has addressed the effectiveness of prokinetic drugs in the treatment of GERD esophagitis in adults. OBJECTIVE To determine the utility of prokinetic drugs in improving symptoms and endoscopic lesions in(More)
The rainbow connection number of a graph G is the least number of colours in a (not necessarily proper) edge-colouring of G such that every two vertices are joined by a path which contains no colour twice. Improving a result of Caro et al., we prove that the rainbow connection number of every 2-connected graph with n vertices is at most n/2. The bound is(More)
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